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): With the 20% off coupon, Alexis received a discount of $15 on her shoes. What was the regular price of her shoes before the 20% off coupon was applied? Justify your answer using equations, models, and/or words to explain your mathematical reasoning.
Answer:

Respuesta :

X= cost of shoes before discount

100-20=80

.80x = x-15

.80x-x= -15

-0.2x= -15

X= 75 dollars

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